21551321 is an odd 8-digits composite number following 21551320
and preceding 21551322 . In scientific notation, it is written as 2.1551321 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 18916240 positive integers (up to 21551321) that are relatively prime to 21551321.
21551321 has 8 divisors, whose sum is 24321600
The reverse of 21551321 is 12315512
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million five hundred fifty-one thousand three hundred twenty-one
Scientific notation
2.1551321 × 10^7
Engineering notation
2.1551321 × 10^6
Prime Factorization
11 × 29 × 67559
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21551321
Product of the distinct prime numbers
The prime factorization of 21551321 is 11 × 29 × 67559.
Since it has a total of 3 prime factors.
1 , 6 , 72 , 23 , 966 , 154 , 8325 , 9736 , 6470 , 29866 , 18529 , 439607 , 6606980 , 8353549 , 83088576 , 10208362 , 828215287 , 269977443 , 9899004401 , 9634618560
n×2
43102642
n×3
64653963
n×4
86205284
n×5
107756605
n÷2
10775660.5
n÷3
7183773.6666667
n÷3
5387830.25
n÷5
4310264.2
n2
464459436845041
n3
1.0009714414927E+22
n4
2.1572256847441E+29
n5
4.6491063201365E+36
2 √n
4642.3400349393
3 √n
278.28596163523
4 √n
68.134719746538
5 √n
29.288341458186
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21551320
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21551321 can be divided by 8 positive divisors.
The sum of these divisors (counting 21551321) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001101100011011001
3
Ternary
1111112220212002
4
Quaternary
1102031203121
5
Quinary
21004120241
6
Senary
2045530345
8
Octal
122154331
10
Decimal
21551321
12
Duodecimal
72739b5
16
Hexadecimal
148d8d9
20
Vigesimal
6edi61
36
Base36
ctx3t
md5
4511f631cfc1cfbf83cc622aba3d2461
sha1
801975d27ef792d024a92f9c2fc71ab130b8084e
sha256
b7789a9c63942f7e0197d4bb60304732ab58f8e0eedc94104aac71b75d642929
sha512
f0639d0cbd2edff8fb0462791859999a09c66ffaeddde7fe9b087dbd135f900683db33f8de60643d47554c6794ee672703b149b5c4298765e11d67279bc839c5
ripemd-160
d06c7d04a5f4db7f7c084eb0d0743b5fb66e6fd6
Diameter
43102642
Circumference
135410943.45751
Area
1.4591423546828E+15
Volume
4.1928593693954E+22
Surface area
5.8365694187313E+15
Circumference
135410943.45751
Perimeter
86205284
Area
464459436845041
Diagonal
30478170.445256
Surface area
2786756621070246
Volume
1.0009714414927E+22
Space diagonal
37327982.942226
Perimeter
64653963
Area
2.0111683566761E+14
Altitude
18663991.471113
Surface area
2.0111683566761E+14
Volume
1.1796561567559E+21
Height
10159390.148419